org.scijava.script
Class DefaultScriptInterpreter

java.lang.Object
  org.scijava.script.DefaultScriptInterpreter

All Implemented Interfaces:

ScriptInterpreter

public class DefaultScriptInterpreter
extends Object
implements ScriptInterpreter

The default implementation of a ScriptInterpreter.

Author:

Johannes Schindelin

Constructor Summary

DefaultScriptInterpreter(PrefService prefs, ScriptService scriptService, ScriptLanguage language)
Constructs a new DefaultScriptInterpreter.

Method Summary

void	eval(String command) Evaluates a command.
ScriptEngine	getEngine() Returns the associated ScriptEngine.
ScriptLanguage	getLanguage() Returns the associated ScriptLanguage.
void	readHistory() Reads the persisted history of the current script interpreter.
String	walkHistory(String currentCommand, boolean forward) Obtains the next/previous command in the command history.
void	writeHistory() Persists the history of the current script interpreter.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultScriptInterpreter

public DefaultScriptInterpreter(PrefService prefs,
                                ScriptService scriptService,
                                ScriptLanguage language)

Constructs a new DefaultScriptInterpreter.

Parameters:

scriptService - the script service

language - the script language

Method Detail

readHistory

public void readHistory()

Description copied from interface: ScriptInterpreter

Reads the persisted history of the current script interpreter.

Specified by:

readHistory in interface ScriptInterpreter

writeHistory

public void writeHistory()

Description copied from interface: ScriptInterpreter

Persists the history of the current script interpreter.

Specified by:

writeHistory in interface ScriptInterpreter

walkHistory

public String walkHistory(String currentCommand,
                          boolean forward)

Description copied from interface: ScriptInterpreter

Obtains the next/previous command in the command history.

Specified by:

walkHistory in interface ScriptInterpreter

Parameters:

currentCommand - the current command (will be stored in the history)

forward - if true, the next history entry is returned (more recent), if false, the previous one

Returns:

the next/previous command

eval

public void eval(String command)
          throws ScriptException

Description copied from interface: ScriptInterpreter

Evaluates a command.

Specified by:

eval in interface ScriptInterpreter

Parameters:

command - the command to evaluate

Throws:

ScriptException

getLanguage

public ScriptLanguage getLanguage()

Description copied from interface: ScriptInterpreter

Returns the associated ScriptLanguage.

Specified by:

getLanguage in interface ScriptInterpreter

getEngine

public ScriptEngine getEngine()

Description copied from interface: ScriptInterpreter

Returns the associated ScriptEngine.

Specified by:

getEngine in interface ScriptInterpreter

Returns:

the script engine